Wolff Hammer spring for Charter Arms Bulldog

[farm23]

I see Wolff now has a hammer spring for the Bulldog. Has anyone experience with installing? I called Wolff and they said the spring was 6.5 lbs but they did not know what the factory spring was. All input is appreciated.

 

[Sunray]

Dunno if it'll help, but at least you can see the thing. Changing the main spring doesn't look terribly difficult to me.
http://stevespages.com/ipb-charterarms-bulldog44.html

 

[Mizar]

For that type of spring assembly I prefer to use a small vise to mount the hammer strut and a pair of modified small needle-nose pliers with cable cutter recess to push the spring in and to hold it compressed until the cross pin is put. Or you can do it like the guy in the video - quick & dirty way (starting from 2:25 min):

 

[farm23]

I like the fork idea. I check and see if it will work on my Charter Arms. Does anyone have experience with the Wolff spring in the CA?